Direct drive structure of drum washing machine



FIG. 1 is a front, left perspective view of the direct drive structure of drum washing machine showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof, the right side view being a mirror image thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a sectional view of FIG. 2. 

The ornamental design for a direct drive structure of drum washing machine, as shown and described. 